Nail filing and polishing machine



1,672,450 l.. D. DE LAITTE v NAIL FILING AND POLISHING MACHINE June 5, 1928.

Filed June 9, 1926 @7i "MV INVEN TOR. fo/vr/NE kwaal/Ls DE Al rre.

A TTORNE YS.

Patented June 5, 1928.

UNITED STATES LEONTINE DANDEVILLE im LAI'TTE, or SAN FRANCISCO, CALIFORNIA.

NAIL FILING .AND POLISHING MACHINE.

Application led lune 9,

This invention lrelates to a nail filing and polishing machine, this application being filed asY a continuation in part of my application entitled Nail filing and polishing machine, vfiled June '9,192'6, S. N. 114,597.

The object of the 'present invention is "to provide a machine which carries a fi1i"" or buing AWheel and which isfso 4sr'n'allaI-r so shaped that it may be readily olasA ed in 'one hand While iiling or polishingthenger nails on the other handgfto provide ra trainy of step-up gears wherebyl a high speedl rotary movement may be transmitted to thefile'o'r bufiing Wheel, and vfurther to provide means whereby gripping or pressure application of the hand may be transmitted to rotate the gears and the buffer driven thereby.

One form Which my invention may assume is exemplified in the fol-lovving de'scrintion and illustrated .in the accompanying craw- Fig. l is a side elevation in section ofthe machine.

Fig. 2 is a plan view in section taken'on line 2 2. y

VFig. 3 is a plan view of the Ina-chine.

yReferring to thedrawin'gs 'detail and particularly to Figs. 1, '2 and 3 A indicates in general a rectangular shaped frame consisti'ng of parallel side nimbersf2 2 'and end sections 3 and 4. Journalled yor'o's'swise of the frame are a plurality 'fof shafts 'indicated at 5, 6, 7 'and 8. Secured von t'h'e shaft 5 is a spur driving gear v9. Secured 'on the shaft '6 is a pair of intermediate spur e'ars I10 and 11. Similarly secured on shaft 7 4is a 'pair of intermediate "spur gears 12 and v13,

and secured on shaft `8 "arey a As pur gear 14 and a bevel gear 15.

Mounted on Onesies :or the driving gen 9 is a roller clutch generallyl indicated at`B. 'This clutch t'onsists 'of an inner Ysec'tior'i 16 which is secured to 'shaft v5 "andan outer section I17 ivhi'eh is provided LWith an o'perating lever or 4arm 18. The inner 'facefof 't'he member l17 "has `a series of inclined recesses formed therein 'as shown at 19, and rnllers 20 are interposed y:between the "inclined faces and the member 16, so that When va rotary V movement is transmitted to the inerr'ibi 17 in one direetidm the rolltlersy yWill and rotate the member 16, vvhile movementjof the larm 1"8 "and member 16 in the 'opposite direction 'will permit the memberrl im re-,

turn without imparting rotary movement.

'to yconform Sto the contour` 'much as possibile."`

Pivotally mounted at one end of therec-4 tangular frame as at 21 is an operating lever 22 Forminga connection between the lever andthe arm 18 is a link 23, and connected vvith lever 22, so as to normally hold in the dotted line position 'shown at '22, is a spring '24.

J ournalledin the end 4 of the rectangular frame and disposed at right angles to the shafts: 5, 6, 7 and 8, is a driven shaft Y25.

Secured 'on the inner end of the'shaft is a f bevel gear 26h which remains in `constant mesh with the'bevel gear y15,'a'11d adapted to be 'secured on the outer end of the shaft is a detachable bung or liling Wheel ,gener'all'y indicated at '27.

The machine so lfar'described has been partieulrlydesigned for the pin-pose of polishing and tiling -`finger nails, and it is carries the v'driving mechanism be as 'small las possible vso that it may befplaced c'on- 'venientlyy inthe hand of an operator when f in actual use. It "is al'soiessential that the frame be enclosed in "a casing generally indicated at and that this "be shaped so Aas 'ofthe-hand as If Vthese c'oiiditi'onsv are complied with, it is obvious that a desiring to 4iile 'and polish his 'or her ,finger nails may platre the 'machine in `one hand and may rotate 'the 'filing v'or*buiin ,c Wheel at a high speed by vmerely'vdepre'ssing the Ioperating lever Q2 by gripfV ing action. Depression of the opeiating 'ever about the lpivotal point y21 trans- -i'nits an oscillating movement to the arin 18 and the member 17 of the roller c'Iutch.

"This movement is 'transmitted t'lirough the rollersto Arotate "the inner clu'tc'h member 16, and as this is secured to the shat rotation Will roe 'transmitted thereto. lrotationji's in turn transmitted tothe driving gear 9, *as 'this is also secured l'on the shaft, this rotary movement isn transmitted through 'the gears 10, l'12, 13 'and 14, 1to t'he' bevelv vgears 15 and 16, and shaft'25, together with the abuiling or fi-ling member carried thereby, vis *time rotated et a ,'high spee when thejoperating1everfisdepressed. It 'isfthu's possible to niiekly file or 'polish `th' `if1`ails.

waag member JQms eea-afable, a

disk having tiling surfaces forn'ied thereon being applied when it is desired to tile the nails and a buiiing wheel being applied when it is 'desired to polish the nails. The spring 24, serves the function of raising or returning the operating lever when it `has be-en depressed its whole limit.v This movement not transmitted to rotate the shafts and provision of a fly-wheel such as generally indicated at 30. This fly-wheel is secured on the shaft 7 and accordingly rotates therewith. The liy-wheel is made as heavy as possible, as this is exceedingly important; that is, the power transmitted to rotate the buiiing or grinding wheel 27 is intermittently applied through the lever 22. This power is stored up to a certain extent in the fly-wheel and the momentum of the fly-wheel will accordingly rotate the buffer 27 at a fairly continuous speed.

The fly-wheel may, ofcourse, be mounted on any one of the shafts 5, 6 or 7, but preferably on the shafts 7 or 8, as the rotating speed of these shafts is the greatest. Practical eXperience has proven that the use of a fly-wheel or weighted rotating member is exceedingly desirable as the rotary movement of the buffer is otherwise too variable.

In Aactual practice the power from the lever 22 is transmitted through the clutch B `and the gears 9, 10, 11 and 12, to rotate shaft and the iiy-wheel carried thereby. The venergy stored up in the fly-wheel when it is `set into rotation is in turn transmitted through `the gears 13 and 14 to the bevel gears 15 and 26, and from these gears the power is transmitted through shaft tothe buffer. It is for this reason that a fairly continuous speed is obtained.

`While certain features of the present invention are more or less specifically illus-v trated, I wish it understood that various `changes in form and proportion may be resorted to within the scope of the appended claims. 1 similarly wish it understood that the materials and finish of the several parts i employed 4may be such as the vexperience and ljudgment ,of the manufacturer may dict-ate or various usesA may demand.

To prevent. accidental pinching of the iiesh between the operating lever 22 and the ,casing, side extensions such as indicated at '22h are provided, these extensions beingso arranged as to telescope inthe Icasing C when the lever is operated. It should also be noted that shaft r may be extended through one side of the easing so that a grinding wheel may be attached thereto as indicated at 27u.

Having thus described my invention, what l claim and desire to secure by Letters Patent is l. A device of the character described comprising a casing adapted to be placed in the hand of an operator and gripped thereby, a shaft journalled in the casing and projecting through one end thereof, abutling member on the shaft,l a step-up gear train journalled in the casing and adapted to drive the shaft, an operating lever pivotally mounted'on the casing, spring means normally holding the lever in one position, `said lever 'adapted to be grippedl and depressed by hand pressure, and meansfor transmitting movement of said operating lever when depressed by hand pressure to drive the gear train and the shaft.

2. A device of the lcharacter described comprising a casing, a shaft journalled therein vand projecting through one end thereof,

a bufling member on said shaft, a step-up gear train mounted in the casing and adapta roller clutch adapted to transmit rotary movement to the gear train in one direction, and manually operated means for transmitting an oscillating movement to said roller clutch. y

3. A device of the characterdescribed comprising a casing, a shaft j ournalled therein and projecting through one end'thereof, a buiiing member on saidv shaft, a step-up gear train mounted in the easing and adapted to drive said shaftand buifmg member, a roller clutch adapted to transmit rotary movement tothe gear train in one direction, an operating lever ypivotally mounted on one end of the casing, said operating lever adapted to be manually depressed in `*one direction, means for transmitting said `movement to rotate the roller clutch in one direction, and spring actuated ine'ans'forrotating the roller clutch in anopposite direcclutch, means for `manually transmitting anv oscillating movement to said clutch, ay second shaft within the casing,l a iiy-wheel thereoin, a gear traininterposed between the fly-wheel and the clutch and adapted to transmit the oscillating movement of thev clutch to rotate'the fly-wheel, and means for transmitting the `rotary movement of ythe fly-wheel to rotate the first-named the buer carried thereby.

5. A device of ther character shaft and ii-scribed tion and for reversing the movement 'of the y comprising at casing adapted to be held in the hand of an operator, a shaft journalled in the casing and projecting therethrough, a buing member on the outer end of said shaft, an oscillatory lever connected with the casing and lying substantially parallel thereto, a driving mechanism in the casing operatively connected with said shaft, and a connecting mechanism connecting said lever with said driving mechanism whereby oscillation of said lever will drive said driving vmechanism to revolve the huing member in one direction. n

- ik LEONTINE DANDEVILLE de LAITTE. 

